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18 December 2021

My encounter with a four-armed robot

Filed under: aging, healthcare, robots — Tags: , , — David Wood @ 8:45 pm

I didn’t actually see the robot. My mind had already been switched off, by anaesthetists, ahead of my bed being wheeled into the operating theatre. It was probably just as well.

Image source: HCA Healthcare

Later, when my mind had restarted, and I was lying in recovery in my hospital ward, I checked. Yes, there were six small plasters on my abdomen, covering six small wounds (“ports”), that the urology surgeon had told me he would create in order for the da Vinci robot to work its magic.

The point of the operation was to remove the central core of my prostate – an organ that sits toward the back of the body and which is difficult to access.

The prostate wraps around the urethra – the channel through which urine flows from the bladder into the penis. The typical size of a prostate for a man aged twenty is around 20 ml. By age sixty this may have doubled. The larger the prostate, the greater the chance of interference with normal urine flow. In my own case, I had experienced various episodes over the last ten years when urination was intermittently difficult, but matters always seemed to right themselves after a few days. Then at the beginning of September, I found I couldn’t pass any urine. What made matters more complicated was that I was away from home at the time, on a short golfing holiday in Wiltshire. The golf was unusually good, but my jammed up bladder felt awful.

Following an anxious call to the NHS 111 service, I was admitted to the Royal United Hospital in Bath where, after a couple of false starts, an indwelling catheter was inserted through my urethra. Urine gushed out. I felt relieved as never before.

In a way, that was the easy bit. The harder question was what long-term approach to take.

A six-week trial of a muscle-relaxant drug called Tamsulosin had no impact on my ability to pass urine unaided. Measuring the size of my prostate via a transrectal ultrasound procedure clarified options: it was a whopping 121 ml.

The radiologist said “This is not the largest prostate I have ever seen”, but it was clear my condition was well outside the usual range. Not only would changes in medication or diet be very unlikely to produce a long-term solution for me. But most of the more standard prostate operations (there are a large family of possibilities, as I discovered) would not be suitable for a prostate as large as mine. The risks of adverse side-effects would be too large, as well as recurrence of prostate pressure in the years to come.

That led my consultant to recommend what is called a robotic-assisted simple prostatectomy. The “simple” is in contrast to the “radical” option often recommended for men suffering from prostate cancer. In a simple prostatectomy, the outer part of the prostate remains in place, along with nerve and other connections.

Over several hours, whilst my mind was deanimated, the robotic arms responded to the commands issued by the human surgeon. Some of the ports were used to introduce gas (CO2) into my abdomen, to inflate it, creating room for the robotic arms to move. Some ports supported illumination and cameras. And the others channelled various cutting and reconstruction tools. By the end, some 85% of my prostate had been removed.

It might sound cool, for a technology advocate like myself to receive an operation from a high-precision robot. But in reality, it was still a miserable experience, despite the high-calibre professional support from medical staff. The CO2 left parts of my body unexpectedly swollen and painful. And as time passed, other swellings known as oedemas emerged – apparently due to fluid.

I learned the hard way that I needed to take things slow and gentle as I recovered. In retrospect, it was a mistake for me to walk too far too soon, and to take part in lengthy Zoom calls. My sleep suffered as a result, with shivering, sweating, coughing fits, and even one black-out when I went to the bathroom and felt myself about to pass out. I had the presence of mind to lower my head quickly before the lights went out altogether. I came to my senses a few moments later, with my upper torso sprawled in the bath, and my lower body hanging over the edge. Thank goodness no serious damage ensued from that mini collapse. The only good outcome that night was when I took a Covid test (because of the coughing) and it came out negative.

Ten days later, things are closer to normal again. It’s wonderful that my internal plumbing works smoothly again, under my control. But I’m still being cautious about how much I take on at any time.

(If you’re waiting for me to reply to various emails, I’ll get round to them eventually…)

More good news: tests on the material removed from my body have confirmed that the growth was “benign” rather than cancerous. My wounds are healing quickly, and I am almost weaned off painkillers.

I have no regrets about choosing this particular surgical option. It was a good decision. Hopefully I’ll be playing golf again some time in January. I am already strolling down some of the fairways at Burhill Golf Club, carrying a single club in my hand – a putter. I drop a golf ball when I reach the green. Sometimes I knock the ball in the hole in two putts, or even just one. And sometimes it’s three putts, or even more. But the fresh air and gentle exercise is wonderful, regardless of the number of putts.

The bigger lesson for me is a message I often include in my presentations: prevention is better than cure. A stitch in time saves nine.

Earlier attention to my enlarging prostate – either by a change of diet, or by taking medicines regularly – may well have avoided all the unpleasantness and cost of the last few months.

As for the prostate, so also for many other parts of the body.

This year, I’ve been thinking more and more about the good health of the mind and the brain. With my reduced mobility over the last few months, I’ve had time to catch up with some reading about brain rewiring, mental agility and reprogramming, the role and content of consciousness, and ways in which people have recovered from Alzheimer’s.

Once again, the message is that prevention is better than cure.

If you’re interested in any of these topics, here’s an image of some books I have particularly enjoyed.

3 September 2021

Aging, slowing down, becoming a cyborg

Here’s a personal note. I’ve had to change quite a few of my plans, due to an unexpected medical issue.

(It’s nothing to do with Covid. The details are below, for readers with a stomach for indelicate topics.)

That issue completely disrupted my activities yesterday and the day before, and it is likely to cause further disruptions in the weeks and months ahead – depending on how my body responds to various treatments.

In any case, I’m going to have to slow down a bit. I may need to cancel some of my provisional travel plans, and spend less time in front of screens and keyboards.

Please accept my apologies in advance if you’re waiting to hear from me about something, and I seem to be unduly slow in responding.

I said my medical issue was “unexpected”, but that’s not the whole story.

I’ve known for some time that potential danger was building up in my body.

It’s an aspect of aging. Our bodies perform remarkably well while we’re in our youth, but over time, various sorts of damage and dysfunction start to build up.

In early years, that damage doesn’t matter much. The body is healthy enough to carry out repairs, and to produce workarounds to compensate for the decline in performance.

Eventually, however, the dysfunction becomes too severe, and results in greater amounts of harm, disease, frailty, and (in due course) death.

That’s why, for example, human mortality (along with the mortality of many other species) accelerates exponentially over time.

If you analyse the data from the UK’s National Life Tables for how many people at any particular age, you’ll find the following:

  • A ten year old has only one chance in around 10,000 of dying before their next birthday
  • A 35 year old has one chance in around 1,000 of dying before their next birthday
  • A 60 year old has one chance in around 100 of dying before their next birthday
  • An 85 year old has one chance in around 10 of dying before their next birthday.

(I did that particular analysis a few years ago. An analysis of the most recent life tables data may show slight differences.)

You’ll spot the pattern.

The pattern isn’t exact. (Otherwise no 110 year old would ever reach the age of 111. Which is what an extrapolation of the previous figures would suggest.)

But it holds to a first approximation. It was first stated in 1825 by London-based actuary and mathematician Benjamin Gompertz, and is sometimes expressed as follows: After the age of around 35, human mortality doubles every eight years.

And it’s plausible that what underlies this observed trend is a gradual increase in damage throughout the biological structures of the body – including damage in those aspects of our biology responsible for repair and regeneration.

That’s the general pattern. One specific example involves the prostate organ. Over time, in some men, the prostate grows and grows, to the extent that it constricts the urethra which passes through it. That constriction slows the flow of urine from the bladder to the outside world.

(As I said, this is an indelicate subject. But it can in some cases become a matter of life and death.)

And that’s what has happened to me.

I’ve known for some time that my prostate had grown large, and was interfering with my “plumbing”.

I now regret that I didn’t pay more attention to that growing risk. I was too easily reassured by observing that the problem seemed to wax and wane. I remember hearing that, for many people, the issue remains tolerable throughout their life. Indeed, the NHS webpage on the topic starts as follows (my emphasis):

Benign prostate enlargement (BPE) is the medical term to describe an enlarged prostate, a condition that can affect how you pee (urinate).

BPE is common in men aged over 50. It’s not a cancer and it’s not usually a serious threat to health.

I knew there were medicines that might help, such as Tamsulosin (brand name “Flomax Relief”) – but that they had side-effects.

So I gave the matter little attention.

But two days ago, my problems passing urine suddenly became a lot worse. I had a constant desire to “go”, but an inability to produce more than the tiniest trickle (after a lot of, err, stressing and straining).

To complicate matters, I was away from home. With my wife and two other couples, I was meant to be enjoying a three day golfing holiday in the picturesque Wiltshire countryside.

Yesterday morning, having failed to reach my own GPs online or by phone, I called the NHS 111 service. To cut to the chase, I was advised to get to a hospital as soon as possible. They made an appointment for me at a hospital in Bath, around 30 minutes car journey distant. And soon after that, I was being examined by an excellent team of NHS staff.

When someone’s bladder is full, it’s normally around 400 to 600 ml in volume. Ultrasound scans showed there was around 900 ml of urine in my bladder. No wonder I was feeling so uncomfortable.

I hadn’t expected to be in hospital that day, but thank goodness I was there.

I’ll skip over all the phases of analysis and treatment, and just mention that I am now slightly more of a cyborg than before. I’ve had a cleverly engineered piece of plastic inserted into my body, allowing me to drain my bladder at will, using a tap at the end of a tube which protrudes. It’s called an indwelling catheter.

It’s most likely only a temporary solution, until my response to Tamsulosin (the drug mentioned earlier) is assessed.

For the time being, my mobility is restricted, until I get used to this new attachment.

And my mind is, how to put it, rather shaken at the turn of events.

But things could have been a great deal worse. I’m deeply grateful for the rapid, painstaking response of the dozen or so members of the Royal United Hospital Bath who took such good care of me.

In moments of lucidity during these hours, I reflected on how much we all depend on each other. Rugged individualism only goes so far.

In the meantime, I’ll move forward with at least some of my projects, including the online London Futurists events already scheduled. They include one on (guess what?) aging, in two weeks time, and one on “Cryptocurrencies for profound good?” taking place tomorrow.

Opening image credit: Wolfgang Eckert from Pixabay.

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